Door-check.



U. W. MALLORY.

DOOR CHECK.

APPLICATION FILED JAN. 24, 1916.

Patented July 11, 1916.

21mm 1% z/ GEORGE W. MALLORYQF BLENHEIM, ONTARIO. CANADA.

noon-CHECK.

Application filed January 24, 1916. Serial No. 73,816.

I '0 all whom it may concern:

Be it known that I, GEORGE W. MALLORY, a subject of the King of Great Britain and Ireland, residing at Blenheim, in the Province of Ontario and Dominion of Canada, have invented certain new and useful Improvements in Do :-Checks, of which the following is a specificanon, reference'being had therein to the accompanying drawings. The' invention relates to door-cheeks of that type adapted to be tripped by the closing movement'of the door and. to exert a resilient pressure fc; completing the closing movement, being re-set upon the op ning of the door. 7

. It is the particular object of the present invention *i obtain a construction which may be manufactured at low cost, is simple in its mechanical elements and has certain advantages over' constructions that have heretofore been employed for this purpose. To this end the invention comprises the construction as hereinafter set forth.

In the drawings: Figure 1 is a longitudi= nal section through the check in the position where the door is opened; Fig. 2 is a sectional elevation at right angles to Fig. 1; Figs. 3 and t are perspective views respectively of the stationary and movable members of the check; and Fig. 5 is an elevation showing the check in the operation of closing the door and in dotted lines. the fully closed position.

The main elements of'my improved construction are preferably formed of sheet metal stampings, comprising a stationary or bracket member A and a movable lever member B. Each of these members is stamped or pressed from a single sheet metal blank bent to have parallelly-arrang d similar side portions and connecting back portions. In detail, the member A is formed with the side portions C and C, each having a base flange D with holes E and E for attachment screws" or nails, one of these holes being preferably slotted. The side portions are preferably dished and rabbeted to strengthen and stiifen the same and to provide clearance for the pivotal lever mom'- ,rber, as hereinafter d scribed. The back portion F extends between the upper portions of thesides but is cut away between the lower. portions of said sides to provide .clearance for the lever. -A portion of the 155 metal cut away is bent forward to form a tongue G constituting a spring anchor, and l Specification of Letters Patent.

' Patented July 11, 1916.

this tongue has the aperture H therein 01 engagement with the spring. The lever member B is formed with two similar crescent-shapedside portions I and I having 0 apertured opposite ends J and K with an intermediate portion L enlarged for a pivot hearing. The two portions I and I- are cross-connected by a rear portion M whichis so arranged that in the open position of 5 the check the lower edge of said portion M will bear against the upper edge of the portion F of the member A, thereby forming ccope 'ating stops. The rear portion M has formed from a part of the metal cut-away from between the sides an inwardly-projecting tongue N apertured at O for engagement with the spring. P and Q are rolls extending between the bifurcated upper and lower ends of the member B and connected thereto by pivot pins R and S riveted or otherwise secured in the opposite side portions. The upper roll P which performs the closing movement upon the door is preferably o. greater diameter and is also preferablv provided with a bushing T forming a bearing on the pivot pinR to prolong the life thereof. The members A and B are pivotally connected to each other and to form this pivot simply and inexpensively eye-rivets are struck-out from. the side portions of one member into engagement with the apertures in the other member. Thus,- as shownin Fig. 2, the sides C and C of the member A have the eye-rivets U and U V is a spring member. one'end of which is connected with the tongue (i on the member A and the opposite end with the tongue N of the member B. and the proportion of parts is such that in the open position of the check where the portion M rests against the portion F, the line of the spring will be in rear of the pivots U and U. thereby holding the parts in this position.

To apply the 'check to a door. the member A is first secured to the door casing. prefer- 1'o5 ably by engaging'securing nails or screws with the slotted apertures E. and after securing the same adjusting said member A, permitted by the elongated slots until said member'isaccurately positioned. Ad-

ditional nails or screws may then beengaged with the aperturesEto lock the memher in this position. hen properly positioned the roll Q which forms the trip will extend into the path of the inner face of the door while the roll 1. will clear the edge of the door. Thus whenever the door is closed it will strike the roll Q, turning the lever until the line of the spring passes to the oppositeside of the pivots l7 and U, whereupon the resilient tension of said spring will be exerted to swing the lever, causing the roll 1 to press on the outer face of the door and force the same closed. In the opening movenurnt of the door the roll 1. will be forced outward and carried to a point where the line of the spring passes in rear of the pivots so that the tension of the spring will be exerted to hold. the parts in open position. One advantage of my construction is that I am enabled to condense the parts so as to decrease the length. of projection beyond the door casing. This is partially due to the tact that the bracket A is cut-away in the rear at the inner end thereof, permitting the roll (,1 to swing rearward between the side members L7 and C, (,lomlensation is also obtained by the peculiar shape of the lever member and the fact that the lower arm thereof which carries the trip roll Q is (libliqucly inclined inwardly in the open p0 sit-ion oi the parts. This effects the quick withdrawal of the trip from the path of the door, and decreases the; amount of clearance required between the outer roll and the outer face of the door..-- The forming of the pivotal connection, between the members by eyerirets not only reduces the number of parts necessary and labor iii assembling them, but also ieiuoves all obstruction from the center of the nimnbers A and 13 so as to leave an unobstructed space for the movement of the spring I]. i i

What I claim as my invention is 1. A door-check, comprising stationary and movable members each formed from an integral ehectanetal blank and having par :illcllyairrangcil similar side port-ions and a connecting rear, portion, said side portions of the 'twoblanks being pivotally connected to each other, and cross members between the sid s of the movablemember at the outer and inner ends thereof for respectively engaging the inner and outer faces of the door.

2. in a door-check, the combination with a stationary bifurcated bracket member, of a moyable lever member formed from a single sheet-metal blank having parallclly-arranged similar crescent-shapcd sideportions and a connecting rear portion, said side portions being pivotally crmnectcd with the sides of the bifurcated bracket member, and cross members between the opposite ends of said crescent-shaped sides forming bearings for the out i and inner tacos ot the door.

t. in a door-chcck, the combination with a bifurcated bracket member, of a lever member formed from a single sheetanetal blank having parallelly-arranged similar crescent-slmped side portions and a connecting rear portion, said side portions being pivotally connected with the sides of the bifurcatedbracket and the lower portion of said sides inclining obliquely inward, for the purpose described.

4. A door-cheek, comprising stationary and movable members each formed from a single sheet-metal blank struck-out to form parallolly-arranged similar side portions and a connecting rear portion, the side portions of the movable member being crescentshaped, a pivotal connection between said members formed of eye-rivets integral with the one and engaging apertures in the other, and cross stop members between the ends of the crescent-shaped sides.

In a (lUUPChGCli, stationary and movable members each formed from a single sheet-metal blank struck up to form paral lelly-arranged similar side portions and a .:onnecting rear portion having a tongue extending forwardly between the side portions, the side portions of the movable member being creseentshaped and being pivotally connected to the sides of the stationary menr her, and a spring connecting the torwardl projecting tongues of said members located to be beyond the center of the pivot when said rear portions are in contact.

(i. A door-check, comprising stationary and mo able members each formed from a single shcetauctal blank struck out to have parallelly-arranged similar side portions, a connecting rear portion and forwardly-extending tongue, the sides of the movable member being 0resccnt-shaped, a pivotal connection between the sides of said members, a, spring connecting the tongues of said members located to hold said rear portions in eontact in the open position of the check, and rolls extending between the upper and lower ends of said crescent-sliaped sides, the arms to which said lower roll is secured being obliquely inclined inward to cause the rapid 'removal of the same from the path of the door.

7. A door-check, con'iprising stationary and movable members each having similar parallel ly-arranged Side portions and :1V connecting rear portion, the sides of the mov able member being crescent-shaped and being pivotally connected to the sides of the stationary member, the back portion of said stationary member being cut away at its inner end to permit the. rearward swinging of the lower arms of said movable member.

8. A door-check, comprising a bifurcated stationary member having parallelly-ai" ranged sides and cut away at front and rear of its inner portion, a Inimi able member having similar parallelly-itrrangcd crescent shaped sides and a connecting rear portion,

' inner ends thereof for respectively engaging 1 naled between the upper and lower ends of said crescent-shaped sides, the lower roll being positioned to extend into the path of the open door in the open position of the check, and the upper roll clearing said door in the open position, and the angle of the sides between which said lower roll is secured being inclined inward to permit quick withdrawal from the path of the door in closing.

9. A door check, comprising stationary and movable members each formed from an integral sheet metal blank and having parallelly arranged similar side portions and a connecting rear portion, said side portions of the two blanks being pivotally connected to each other, means for yieldably'connecting opposite ends ofvsaid connecting rear portions permitting of the relative movement of said members and cross members between the sides of the movable membeiflat the'out-cr and the inner and outer faces of the door.

10. In a door check, the combination with a stationary bifurcated bracket member, of a movable member formed from an integral sheet metal blank having parallelly arranged similar crescent shaped slde portions and a connecting rear portion, said side portions being pivotally connected with the sides of the bifurcated bracket member, yieldable means connecting the outer end of the connecting rear portion of one of the members and the inner-end of the connecting rear portion of the other of said members, said means permitting of relative movement of said members and cross members between the op posite ends of said crescent shaped sides forming bearings for the outer and inner faces of the door.

In testimony whereof I afiix my signature in presence of two witnesses.

I GEORGE \V.'MALLORY.

\Vitnesses JAMES P. BARRY, InYnms Corinne, 

